Bosch Washer Error Code dr:10

The dr:10 error code on a Bosch washer indicates that the power limiter switch has tripped due to a motor overload or binding condition. The power limiter is a protective circuit designed to cut power to the drive motor when current draw exceeds safe operating thresholds. This prevents damage to the motor windings, control board, and associated wiring. When the motor is forced to work harder than normal, either because of mechanical resistance in the drum assembly or an internal motor fault, the limiter responds by shutting the motor down and triggering this fault code.

The most common mechanical cause is a binding condition somewhere in the drum drive system. This can include worn or seized drum bearings, a foreign object lodged between the drum and the tub, or a drive belt that has seized or become misaligned. In each of these cases, the motor encounters abnormal resistance during rotation and draws excess current. An overloaded drum, meaning a wash load that is too heavy for the motor to drive efficiently, can also trigger the limiter under sustained high-torque demand.

Diagnosing this fault should begin with test P4, which cycles the motor under controlled conditions and allows a technician to observe whether the overload condition is reproducible and whether it points to an external mechanical binding or an internal motor failure. If the motor runs freely during P4 but the fault returns during normal operation, focus on drum loading habits and drum bearing wear. If the motor struggles or fails during P4 itself, internal motor faults or a defective control circuit are more likely culprits.